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| 1 | 含某些碱金属盐的互穿聚合物网络的离子导电性显示文摘研究了由分子量为400的聚环氧乙烷(PEO400)、碱金属盐(NaI、LiClO_4或LiBF_4)与环氧树脂或不饱和聚酯树脂形成的互穿聚合物网络(IPN)的离子电导率与温度的关系,发现其1olσ-1/T符合Afrhenius公式,但在333K处直线斜率出现转折。这一现象可能与其中的PEO400-碱金属盐络合物具有某种有序结构有关。环氧树脂IPN的室温电导率达3×10^(-5)Scm^(-1),不饱和聚酯树脂IPN的室温电导率较低,(σ_(RT)=2×10^(-6)Scm^(-1)。然而,若在后者的聚酯大分子链中引入PEO400链段,增加它们与PEO400/LiClO_4络合物的相容性,则室温电导率与环氧树脂IPN相同,σ_(RT)=3×10^(-5)Scm^(-1)。 | 胡春圃 Wright P.V. | 1990 | 高分子材料科学与工程1990,6,3: | 10 |
| 2 | Electrodeposition of aluminium and aluminium-copper alloys from a room temperature ionic liquid electrolyte containing aluminium chloride and triethylamine hydrochloride显示文摘The electrodeposition of Al and Al-Cu binary alloys on to gold substrates from a room temperature ionic liquid electrolyte containing AlCl3-Et3NHCl was studied.The electrochemical behavior of the electrolyte and the mechanism of deposition were investigated through cyclic voltammetry(CV),and the properties of deposits obtained were assessed by scanning electron microscopy with energy dispersive X-ray spectroscopy(SEM-EDS) and X-ray difraction(XRD).Al of 70 μm in thickness and an Al-Cu alloy of 30 μm in thickness with 8at% copper were deposited from the electrolyte.SEM images of the deposits indicate that the Al deposit was smooth and uniform,whereas the Al-Cu deposit was nodular.The average crystalline size,as determined by XRD patterns,was found to be(30 ± 5) and(29 ± 5) nm,respectively,for Al and Al-Cu alloys.Potentiodynamic polarization(Tafel plots) and electrochemical impedance spectroscopic(EIS) measurements showed that Al-Cu alloys are more corrosion resistant than Al. | P.V. Suneesh T.G. Satheesh Babu T. Ramachandran | 2013 | International Journal of Minerals,Metallurgy and Materials2013,20,9: | 9 |
| 3 | Microstructure and Mechanical Properties of Friction Stir Lap Welded Aluminum Alloy AA2014显示文摘Friction stir lap welds were produced in 3 mm thick Alclad sheets of Al alloy 2014-T4 using two different tools (with triangular and threaded taper cylindrical pins). The effects of tool geometry on weld microstructure, lap-shear performance and failure mode were investigated. The pin profile was found to significantly influence the hook geometry, which in turn strongly influenced the joint strength and the failure mode. Welds produced in alloy 2014-T4 Alclad sheets by using triangular and threaded taper cylindrical tools exhibited an average lap-shear failure load of 16.5 and 19.5 kN, respectively, while the average failure load for standard riveted joints was only 3.4 kN. Welds produced in alloy 2014-T6 Alclad sheets and in alloy 2014-T4 bare sheets (i.e., no Alclad) were comparatively evaluated with those produced in alloy 2014-T4 Alclad sheets. While the welds made (with threaded taper cylindrical tool) in T6 and T4 conditions showed very similar lap-shear failure loads, the joint efficiency of the welds made in T6 condition (43%) was considerably lower (because of the higher base material strength) than those made in T4 condition (51%). The Alclad layers were found to present no special problems in friction stir lap welding. Welds made with triangular tool in alloy 2014-T4 Alclad and bare sheets showed very similar lap-shear failure loads. The present work provides some useful insights into the use of friction stir welding for joining Al alloys in lap configuration. | S. Babu G.D. Janaki Ram P.V. Venkitakrishnan G. Madhusudhan Reddy K. Prasad Rao | 2012 | Journal of Materials Science & Technology2012,28,5: | 8 |
| 4 | 单侧小肾细胞癌射频消融术与保肾手术的效价比分析显示文摘目的评价经皮射频消融术(RF)与保留肾单位手术(NSS)治疗小的(直径≤4cm)肾细胞癌的相对成本效益,制定出社会希望支付,普遍可接受的费用水平。方法建立马尔可夫(Markov)决策分析模型,评估接受射频消融或保肾手术的65岁组小肾细胞癌病人的预期寿命及相关花费。模型的建立考虑到了肾癌的状况、治疗效果、费用及近期和远期疗效等综合因素。在假定每个质量校正生存年(QALY)费用为75000美元的前提下,分析判定优选治疗方案如何能提高性价比。在预期范围内引导完善的新式医疗保健干预措施。用敏感性来反映主要参数的变化结果。结果通过运用案例假设,NSS后有质量的生活时间略长于RF(2.5d), | P.V. Pandharipande D.A. Gervais P.R. Mueller C. Hur G.S. Gazelle. 邢艳(译) 刘文亚(校) 唐光健(校) | 2008 | 国际医学放射学杂志2008,31,5: | 7 |
| 5 | 夹层橡胶支座参数对大型LNG储罐地震响应的影响显示文摘利用ADINA软件建立董家口16万立方米LNG储罐的有限元模型,在模型中分别设置不同水平刚度、不同隔震频率和阻尼比的夹层橡胶垫作为储罐的隔震装置。对比了隔震前后储罐的位移和加速度反应的变化,同时分析了采用不同隔震参数支座的储罐在液固耦合作用下,储罐内部液面晃动的变化情况。结果表明:夹层橡胶支座的水平刚度对储罐隔震效果的作用不明显,但夹层橡胶支座的隔震频率和阻尼比对储罐隔震效果的影响显著。隔震频率和阻尼比越大,对内外罐位移和加速度的控制效果越明显。因为基底剪力、基底倾覆弯矩和动液压力会增大,而且隔震装置会放大储罐的晃动波高,所以在选取隔震支座时,要综合考虑储罐高径比、隔震支座的隔震频率和阻尼比等参数,选取最优组合,从而达到最佳的减震效果。 | 管友海 TARASENKO A.A. 黄思凝 CHEPUR P.V. 张如林 | 2016 | 世界地震工程2016,32,1: | 2 |
| 6 | Z-effect after intramedullary nailing systems for trochanteric femur fractures显示文摘这研究的 PurposeThe 目的是调查 Z 效果的发生在以后双落后贡献这效果的螺丝钉 intramedullary 钉系统和风险因素。我们长假设了那钉子比的由于更长的杆提供更多的颈力量突然钉并且不太多半因此是开发一个更高级的头的错误平衡压缩的力量比颈压缩 strength.MethodsIn 103 个病人起作用地对待与的这回顾的队研究一双落后螺丝钉 intramedullary 钉设备为(潜水艇) trochanteric 臀部骨折被包括。我们关于病人和手术特征分析了耐心的图表。而且,我们在 2 年的后续时期以内进行了放射线学的大小调查破裂固定的质量,为 Z 效果植入失败和预言者。重新操作风险与 multivariate 回归 analysis.ResultsThe 发生被调查(逆行) 在这研究的 Z 效果是 9%(n ?=? 80 ) ;6 从 7 Z 效果发生在短钉子组,它不是重要的。与一根长钉子被对待的病人与短钉子组比较有复杂并发症的一个重要更大的数字(中部 2 对 0.5, p ?=? 0.001 ) 。长钉子组更经常收到了红血球输血(82% 对 31% , p ? 0.01 ) 并且让一所更长的医院留下来(13 对 21 天, p ? 0.05 ) 。移植落后螺丝钉(p ?< 0.05 ) 并且不稳定的破裂类型(p ? 0.05 ) ,是为重新操作的风险因素。在在外科以后的 2 年以内的重新操作率是 21% ,哪个第四由于 Z-effect.ConclusionThe 钉子长度没与 Z 效果的发展被联系。移植落后在钉的 intramedullary 是普通的以后,拧紧并且为重新操作的一个风险因素。 | S.J.M. Smeets G. Kuijt P.V. van Eerten | 2017 | Chinese Journal of Traumatology2017,20,6: | 2 |
| 7 | Light emitting diodes reliability review显示文摘 | Moon-Hwan Chang Diganta Das P.V. Varde Michael Pecht | 2011 | Microelectronics Reliability2011,,5: | 2 |
| 8 | Studies on the Functional Properties of Protein Concentrate of Kappaphycus alvarezii (Doty) Doty – An Edible Seaweed显示文摘 | K. Suresh Kumar K. Ganesan Kandasamy Selvaraj P.V. Subba Rao | 2013 | Food Chemistry2013,,: | 2 |
| 9 | 国际镍公司铲运机自动化发展回顾显示文摘本文介绍了斯托比矿铲运机自动化技术的最新发展,对该矿的通讯系统以及利用该系统从地表遥控地下设备的能力作了回顾,重点介绍井下铲运机地表遥控操纵系统的开发。 | R.A.普尔 P.V.戈登 G.R.贝顿 左立标 | 1998 | 世界采矿快报1998,14,5: | 2 |
| 10 | 何谓博物馆?何谓成功?显示文摘 | P.V.门施 白岩 | 2001 | 中国博物馆2001,,1: | 2 |
| 11 | Oxidative stress induction by T-2 toxin causes DNA damage and triggers apoptosis via caspase pathway in human cervical cancer cells显示文摘 | Manjari Chaudhari R. Jayaraj A.S.B. Bhaskar P.V. Lakshmana Rao | 2009 | Toxicology2009,,2: | 2 |
| 12 | Ocimum gratissimum retards breast cancer growth and progression and is a natural inhibitor of matrix metalloproteases显示文摘 | Pratima Nangia-Makker Tirza Raz Larry Tait Malathy P.V. Shekhar Hong Li Vitaly Balan Hemanckur Makker Rafael Fridman Krishnarao Maddipati Avraham Raz | 2013 | Cancer Biology & Therapy2013,,: | 1 |
| 13 | Exenatide Reduces Infarct Size and Improves Cardiac Function in a Porcine Model of Ischemia and Reperfusion Injury显示文摘 | Leo Timmers José P.S. Henriques Dominique P.V. de Kleijn J. Hans DeVries Hans Kemperman Paul Steendijk Cees W.J. Verlaan Marjolein Kerver Jan J. Piek Pieter A. Doevendans Gerard Pasterkamp Imo E. Hoefer | 2009 | Journal of the American College of Cardiology2009,,: | 1 |
| 14 | SND tracking system—Tests with cosmic muons显示文摘 | V.M. Aulchenko A.G. Bogdanchikov A.A. Botov A.D. Bukin D.A. Bukin T.V. Dimova V.P. Druzhinin P.V. Filatov V.B. Golubev A.G. Kharlamov A.A. Korol S.V. Koshuba A.E. Obrazovsky E.V. Pakhtusova V.M. Popov S.I. Serednyakov A.A. Sirotkin I.K. Surin Yu.A. Tikhon | 2008 | Nuclear Inst. and Methods in Physics Research, A2008,,1: | 1 |
| 15 | Computing of gas flows in micro- and nanoscale channels on the base of the Boltzmann Kinetic equation显示文摘 | Yu.A. Anikin E.P. Derbakova O.I. Dodulad Yu.Yu. Kloss D.V. Martynov O.A. Rogozin P.V. Shuvalov F.G. Tcheremissine | 2010 | Procedia Computer Science2010,,1: | 1 |
| 16 | Study and analysis of effect of various thermal processes in AA 2219 annealed sheet using acoustic emissions显示文摘 | P.V. Venkitakrishnan P.P. Sinha R. Krishnamurthy | 2005 | Materials and Design2005,,9: | 1 |
| 17 | Chromosomal changes: induction, detection methods and applicability in human biomonitoring显示文摘 | R. Mateuca N. Lombaert P.V. Aka I. Decordier M. Kirsch-Volders | 2006 | Biochimie2006,,11: | 1 |
| 18 | Non-steroidal anti-inflammatory drug (NSAID)-induced colonic strictures and perforation: A case report显示文摘 | M.M. Aloysius P.V. Kaye D.N. Lobo | 2005 | Digestive and Liver Disease2005,,4: | 1 |
| 19 | Resistance exercise and glycemic control in women with gestational diabetes mellitus显示文摘 | Marcelo C. de Barros Marco A.B. Lopes Rossana P.V. Francisco Andreia D. Sapienza Marcelo Zugaib | 2010 | American Journal of Obstetrics and Gynecology2010,,: | 1 |
| 20 | Internal steam reforming in solid oxide fuel cells: Status and opportunities of kinetic studies and their impact on modelling显示文摘 | D. Mogensen J.-D. Grunwaldt P.V. Hendriksen K. Dam-Johansen J.U. Nielsen | 2010 | Journal of Power Sources2010,,1: | 1 |